src/hotspot/os/linux/os_linux.cpp

rev 56448 : imported patch 8220310.mut.0
rev 56451 : imported patch 8220310.mut.1-3_kim

*** 3009,3018 ****
--- 3009,3036 ----
      }
    }
    return 0;
  }
  
+ int os::numa_get_address_id(uintptr_t addr) {
+ #ifndef MPOL_F_NODE
+ #define MPOL_F_NODE     (1<<0)  // Return next IL mode instead of node mask
+ #endif
+ 
+ #ifndef MPOL_F_ADDR
+ #define MPOL_F_ADDR     (1<<1)  // Look up VMA using address
+ #endif
+   
+   uint32_t id = (uint32_t)-1;
+ 
+   if (syscall(SYS_get_mempolicy, &id, NULL, 0, addr, MPOL_F_NODE | MPOL_F_ADDR) == -1) {
+     warning("Failed to get numa id at " PTR_FORMAT " with errno=%d", p2i((void*)addr), errno);
+     return os::InvalidId;
+   }
+   return id;
+ }
+ 
  int os::Linux::get_existing_num_nodes() {
    int node;
    int highest_node_number = Linux::numa_max_node();
    int num_nodes = 0;